Definition of bubo noun from the Oxford Advanced American Dictionary

 

bubo

 noun
noun
NAmE//ˈbyuboʊ//
 
, NAmE//ˈbuboʊ//
 
(pl. buboes)(medical)
 
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a painful swelling of the lymph node under the arm or in the groin
See the Oxford Advanced Learner's Dictionary entry: bubo